EP 0204293 A1 1986-12-10 - Solenoid construction and method for making the same.
Solenoid construction and method for making the same.
Solenoidanordnung und ihr Herstellungsverfahren.
Solenoide et sa méthode de fabrication.
US 74064085 A
A proportional solenoid has a fixed pole piece (39) and a movable armature (45), both fitted into the bore (52) of a guide tube (36) that provides the required concentricity between the fixed and movable pole pieces (39) and (45). One of the pole pieces has a cylindrical recess (56) and the other pole piece has a reduced diameter cylindrical nose (62) that is complementary to cylindrical recess (56). A radially inwardly facing frusto-conical surface (95) is formed in cylindrical nose (62) to be disposed within recess (56) of the other pole piece and provide a frusto-conical pole piece section producing a linear force-stroke curve.
IPC 1-7 (main, further and additional classification)
IPC 8 full level (invention and additional information)
CPC (invention and additional information)
Citation (search report)
Designated contracting state (EPC)
DE FR GB IT